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Safety Guide

Trucking Accident Procedures: Step-by-Step

Nobody wants to think about being in a truck accident, but knowing exactly what to do when it happens can protect your safety, your CDL, and your livelihood. Whether it is a parking lot scrape or a highway greasy side up rollover, these step-by-step procedures will guide you through the critical first hours. See also our accident reporting guide for FMCSA requirements.

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O Trucking Editorial Team

Trucking Industry Experts

Published: February 20, 2026Updated: February 20, 2026

Fact-Checked by O Trucking Dispatch Team

5+ years guiding drivers through accident procedures and post-incident compliance

5+ Years Experience80+ Carriers ServedIndustry Data Verified

This article was written by the O Trucking editorial team with 9+ years of combined trucking industry experience. Learn more about us.

Step 1: Scene Safety — Protect Yourself and Others

Your first priority is safety. In the immediate aftermath of an accident, the scene itself is dangerous — especially on a highway with high-speed traffic.

Turn on four-way flashers — This is the first thing you should do, even before exiting the cab. Make your truck visible to approaching traffic immediately.

Set out warning devices — If you can safely exit the truck, place reflective triangles at 100 feet, 200 feet, and 300 feet behind your vehicle. On a curve or hill, place the farthest triangle at a distance that gives approaching drivers enough time to react.

Do not stand between vehicles — Many secondary fatalities at accident scenes occur when people are struck by passing traffic. Stand off the roadway, behind guardrails, or in the median when possible.

Check for fire or fuel hazards — If you see or smell fuel leaking, if the truck is smoking, or if there is any fire, move away from the vehicle immediately and warn others to do the same. Diesel fuel has a relatively high flash point but can still ignite, especially near hot engine components.

Step 2: Call 911 and Request Emergency Services

Call 911 as soon as the scene is secured. Even if the accident seems minor, having a police report is essential for insurance claims and FMCSA records. Provide clear, concise information:

  • Exact location: highway, direction, mile marker, or nearest exit/cross street
  • Number and types of vehicles involved (semi-truck, passenger car, etc.)
  • Whether anyone is injured and the apparent severity
  • Whether lanes are blocked and which ones
  • Any hazmat involvement (check your bill of lading)

Step 3: Document Everything with Photos and Notes

Evidence is perishable. Start documenting as soon as it is safe to do so. Use your smartphone camera to capture:

Vehicle damage — Photograph all damage to all vehicles from multiple angles. Include close-ups and wide shots that show the overall scene context.

Road and weather conditions — Wet pavement, ice, potholes, construction zones, faded lane markings — all may be relevant to determining cause.

Skid marks and debris — These show vehicle paths and impact points. Photograph before they are disturbed by traffic or cleanup.

Traffic signs and signals — Speed limit signs, stop signs, yield signs, and traffic signals near the scene.

Take More Photos Than You Think You Need

You cannot go back and take photos later. The scene will be cleaned up, vehicles towed, and conditions changed. Take 50-100 photos from every angle. Storage is free on your phone — the evidence is priceless. Include photos of the other driver's license, insurance card, and license plate.

Step 4: Exchange Information

Exchange the following with all other drivers involved:

Personal: Full name, phone number, driver's license number and state

Insurance: Company name, policy number, claims phone number

Vehicle: Make, model, year, color, license plate number and state

Commercial: CDL number, MC/DOT number, carrier name, USDOT #

Step 5: Notify Your Company and Insurance

Call your dispatcher or carrier safety department as soon as possible. They will coordinate insurance notification, towing, cargo recovery, and load reassignment. For owner-operators, also contact your insurance company directly.

Your carrier's safety department will also determine whether post-accident drug testing is required based on the accident criteria.

Step 6: Preserve Dashcam and ELD Data

Electronic evidence is critical:

Dashcam footage — Lock/save the recording immediately. Remove the SD card if needed to prevent overwrite. Upload to cloud storage if available. This footage may be your best evidence.

ELD data — Your ELD records your driving status, speed, and location data. This information will be reviewed during the investigation. Make sure your logs are accurate — annotate your log with the accident time and details.

GPS and telematics — If your truck has a GPS tracker or telematics system, this data can show speed, braking, and location at the time of the accident. Preserve it.

Post-Accident Drug Testing Deadlines

If the accident meets FMCSA criteria for mandatory testing: alcohol testing must be completed within 8 hours, and drug testing within 32 hours. Do not consume any alcohol until testing is completed or the 8-hour window has passed. Refusing a required test equals a positive test result under federal law.

Trucking Accident Procedures FAQ

Common questions about what to do after a truck accident

What are the first 3 things to do after a truck accident?

The first three things to do after a truck accident are: (1) Check yourself for injuries and ensure you are safe. (2) Secure the scene by turning on hazard lights and placing warning triangles at 100, 200, and 300 feet behind your vehicle if safe to do so. (3) Call 911 and report the accident with your exact location, number of vehicles involved, and whether anyone is injured. These three steps address immediate safety before moving on to documentation and notification.

Should I move my truck after an accident?

It depends on the situation. If your truck is blocking traffic and creating a secondary accident hazard, and it can be moved safely, most states require you to move it to the shoulder or a safe area. However, if there are serious injuries, the truck cannot be moved safely, or police instruct you not to move it, leave it in place. Before moving anything, photograph the scene and vehicle positions first to preserve evidence of the original accident scene.

What information should I exchange with the other driver?

Exchange the following information: full legal name, driver's license number and state, insurance company name and policy number, license plate number, vehicle make/model/year, phone number, and employer name if applicable. For commercial drivers, also exchange your CDL number, MC/DOT number, and carrier name. Photograph all documents rather than relying on handwritten notes — this ensures accuracy and provides a backup.

How do I preserve dashcam footage after an accident?

Immediately after the accident, press your dashcam's event/lock button if it has one — this prevents the footage from being overwritten. If your dashcam uses a loop recording system, the current file will eventually be overwritten by new footage. Remove the SD card and store it safely, or upload the footage to cloud storage using your phone. Do not give the SD card to anyone at the scene. Your attorney, carrier, and insurance company will need copies.

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